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8249245 = 56772437
BaseRepresentation
bin11111011101111110011101
3120112002211121
4133131332131
54102433440
6452450541
7130055164
oct37357635
916462747
108249245
114724864
122919a51
13192aa14
14114a3db
15ace34a
hex7ddf9d

8249245 has 8 divisors (see below), whose sum is σ = 9917784. Its totient is φ = 6586944.

The previous prime is 8249207. The next prime is 8249303. The reversal of 8249245 is 5429428.

It can be written as a sum of positive squares in 4 ways, for example, as 5433561 + 2815684 = 2331^2 + 1678^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8249245 - 215 = 8216477 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8249245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2167 + ... + 4603.

It is an arithmetic number, because the mean of its divisors is an integer number (1239723).

Almost surely, 28249245 is an apocalyptic number.

It is an amenable number.

8249245 is a deficient number, since it is larger than the sum of its proper divisors (1668539).

8249245 is a wasteful number, since it uses less digits than its factorization.

8249245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3119.

The product of its digits is 23040, while the sum is 34.

The square root of 8249245 is about 2872.1498916317. The cubic root of 8249245 is about 202.0558369315.

The spelling of 8249245 in words is "eight million, two hundred forty-nine thousand, two hundred forty-five".

Divisors: 1 5 677 2437 3385 12185 1649849 8249245